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1.
J Ethnopharmacol ; 330: 118203, 2024 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-38641075

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: The ecological environment of Northeast region of India (NER), with its high humidity, has resulted in greater speciation and genetic diversity of plant, animal, and microbial species. This region is not only rich in ethnic and cultural diversity, but it is also a major biodiversity hotspot. The sustainable use of these bioresources can contribute to the region's bioeconomic development. AIM OF THE STUDY: The review aimed to deliver various perspectives on the development of bioeconomy from NER bioresources under the tenets of sustainable utilization and socioeconomic expansion. MATERIALS AND METHODS: Relevant information related to prospects of the approaches and techniques pertaining to the sustainable use of ethnomedicine resources for the growth of the bioeconomy were retrieved from PubMed, ScienceDirect, Google Scholar, Scopus, and Springer from 1984 to 2023. All the appropriate abstracts, full-text articles and various book chapters on bioeconomy and ethnopharmacology were conferred. RESULT: As the population grows, so does the demand for basic necessities such as food, health, and energy resources, where insufficient resource utilization and unsustainable pattern of material consumption cause impediments to economic development. On the other hand, the bioeconomy concept leads to "the production of renewable biological resources and the conversion of these resources and waste streams into value-added products. CONCLUSIONS: In this context, major emphasis should be placed on strengthening the economy's backbone in order to ensure sustainable use of these resources and livelihood security; in other words, it can boost the bio-economy by empowering the local people in general.


Asunto(s)
Etnofarmacología , India , Humanos , Animales , Conservación de los Recursos Naturales/economía , Biodiversidad , Medicina Tradicional/economía , Plantas Medicinales , Desarrollo Sostenible
2.
Proc Natl Acad Sci U S A ; 119(5)2022 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-35074869

RESUMEN

International initiatives for reducing carbon emissions from deforestation and forest degradation (REDD+) could make critical, cost-effective contributions to tropical countries' nationally determined contributions (NDCs). Norway, a key donor of such initiatives, had a REDD+ partnership with Indonesia, offering results-based payments in exchange for emissions reductions calculated against a historical baseline. Central to this partnership was an area-based moratorium on new oil palm, timber, and logging concessions in primary and peatland forests. We evaluate the effectiveness of the moratorium between 2011 and 2018 by applying a matched triple difference strategy to a unique panel dataset. Treated dryland forest inside moratorium areas retained, at most, an average of 0.65% higher forest cover compared to untreated dryland forest outside the moratorium. By contrast, carbon-rich peatland forest was unaffected by the moratorium. Cumulative avoided dryland deforestation from 2011 until 2018 translates into 67.8 million to 86.9 million tons of emissions reductions, implying an effective carbon price below Norway's US$5 per ton price. Based on Norway's price, our estimated cumulative emissions reductions are equivalent to a payment of US$339 million to US$434.5 million. Annually, our estimates suggest a 3 to 4% contribution to Indonesia's NDC commitment of a 29% emissions reduction by 2030. Despite the Indonesia-Norway partnership ending in 2021, reducing emissions from deforestation remains critical for meeting this commitment. Future area-based REDD+ initiatives could build on the moratorium's outcomes by reforming its incentives and institutional arrangements, particularly in peatland forest areas.


Asunto(s)
Carbono/economía , Conservación de los Recursos Naturales/economía , Análisis Costo-Beneficio/economía , Cambio Climático/economía , Bosques , Indonesia , Noruega , Aceite de Palma/economía , Paris
3.
PLoS One ; 16(9): e0256498, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34469477

RESUMEN

In this study we investigate whether the increasing investment in smallholder oil palm plantations that contributes to deforestation is motivated by financial gains or other factors. We evaluate the financial viability of smallholder farmers selling fresh fruit bunches (FFBs) to intermediaries or agro-industrial companies with mills, or processing the FFBs in artisanal mills to produce palm oil. We use data collected in four oil palm production basins in Cameroon and carried out a life cycle assessment of oil palm cultivation and CPO production to understand financial gains. We use payback period (PBP), internal rate of return (IRR), benefit cost ratio (BCR) and net present value (NPV) for 1 ha of oil palm plantation over 28 years at a base discount rate of 8% to asses viability. Our results show that smallholders make more money processing their FFBs in artisanal mills to produce CPO than selling FFBs to intermediaries or agro-industrial companies with mills. The sensitivity analysis show that land ownership is the single most important parameter in the profitability of investment in palm oil cultivation and trade. In addition to land cost, smallholders suffer from borrowing at high interest rates, high field management costs, while recording low on-farm FFB/processing yields. To improve the financial viability of smallholders investing in oil palm cultivation, measures are needed to encourage them to access land, get loans at reduced interest rates, reduce the cost of field management, adopt good agricultural practices to improve on-farm FFB/processing yields, as well as to generate additional revenue from the sale of other products.


Asunto(s)
Conservación de los Recursos Naturales/economía , Granjas/economía , Frutas/economía , Inversiones en Salud , Aceite de Palma/economía , Camerún , Análisis Costo-Beneficio , Agricultores , Humanos , Modelos Económicos , Pobreza
4.
J Ethnobiol Ethnomed ; 15(1): 39, 2019 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-31412897

RESUMEN

BACKGROUND: Elaphrodes lactea Gaede is a highly praised edible lepidopteran insect in the Miombo forest in the DRC. Both caterpillars and pupae of this species are consumed. Following recent declines in the Miombo forest, it is crucial to investigate the rate of consumption, biological, and exploitation cycles, as well as the trade and profitability of E. lactea to develop a sustainable program for its use. METHODS: We, therefore, embarked on a survey in 10 sites located in Lubumbashi between 2011 and 2015. Information on E. lactea supply chain and harvesting period was also documented as well as the mode of selling, pricing, and other determinants of the business. Data were analyzed using R2.15.0 software and means were compared using the Fisher LSD test. RESULTS: The study revealed that E. lactea is the most preferred caterpillar and several indicators guide its exploitation. Caterpillars are available between March and April, and pupation starts in May. Harvesting starts within the household surroundings before reaching the bush, and several harvesting techniques are used. The indirect mode of trade of E. lactea is the most commonly used, with the average price/kg varying between USD2.32 (during in-season = production period for caterpillars) and USD5.24 (during dry season = off-season, mainly pupae). During the peak season of caterpillar production, the harvester's average income per day varies between USD1.6 and USD3.0 whereas it varies between USD2.2 and USD5.2 during the pupal season. Anthropogenic activities, coupled with climatic factors, constitute the main drivers affecting the availability of E. lactea. CONCLUSIONS: The study, therefore, calls on a concerted action from all stakeholders to increase awareness and the development of innovative measures for sustainable exploitation of this insect while ensuring rehabilitation of the forest through community participation.


Asunto(s)
Conservación de los Recursos Naturales/métodos , Insectos Comestibles/economía , Insectos Comestibles/provisión & distribución , Cadena Alimentaria , Lepidópteros , Encuestas y Cuestionarios , Animales , Conservación de los Recursos Naturales/economía , República Democrática del Congo , Países en Desarrollo , Bosques , Humanos
5.
J Ethnobiol Ethnomed ; 15(1): 38, 2019 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-31412939

RESUMEN

BACKGROUND: Atacora Chain of Mountains (ACM) is the Benin part of a range of mountains lying from Benin to Ghana through Togo. It provides goods and services to people and is dominated by rural communities with heavy reliance on natural resources. The ACM may be threatened by the increasing resource needs and the possible shift in people's livelihood priorities brought about by challenges and opportunities ushered in by modernization. This study sought to understand local people's perception of the services derived from the ACM and the socio-demographic factors (age, gender, and level of urbanization of the place people live in) accounting for these perceptions. METHODS: Face to face interviews with 12 focus groups in 3 municipalities were carried out to obtain a list of ecosystem services cited by the participants. At the individual level, 144 people (men, women, young, adult, and old people from either rural or urbanized areas) equally distributed in the 3 municipalities were asked whether they acknowledge each of the services cited by the focus groups. Logistic regressions were then used with generalized linear models (GLM) function in R to analyze the relationships between the probability of acknowledgement of a service by the respondents and their socio-demographic characteristics. RESULTS: Local people perceived the ACM as a provider of provisioning, supporting, and cultural services but cited more provisioning services than the others. The factors considered in this study (gender, location, and age) were all predictors of ecosystem services perception in the ACM. Location influenced people's perception of provisioning and supporting services such that respondents from rural municipalities were more likely to perceive provisioning and supporting services. This is because people in rural areas have a heavier reliance on natural resources. Gender was associated with respondents' perception of supporting, provisioning, and cultural services. Women were more likely to perceive provisioning services and less likely supporting and cultural services. People in each category of gender have a perception of ES linked to their livelihood activities. Young people were less likely to perceive supporting services than adults and old people due to their less involvement in farming activities. CONCLUSIONS: This study showed that gender, location, and age predict local people's perception of ecosystem services in the ACM and livelihood orientation is determinant. The omission of regulation and many of the supporting services questions the future of this mountain chain if its exploitation continues without any awareness and conservation measures.


Asunto(s)
Agricultura/métodos , Biodiversidad , Conservación de los Recursos Naturales/métodos , Ecosistema , Recursos Naturales/provisión & distribución , Adolescente , Adulto , Agricultura/estadística & datos numéricos , Benin , Conservación de los Recursos Naturales/economía , Países en Desarrollo , Femenino , Humanos , Masculino , Percepción , Población Rural , Factores Socioeconómicos , Adulto Joven
6.
Mar Pollut Bull ; 142: 189-195, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31232294

RESUMEN

This research takes a holistic approach to considering the consequences of marine plastic pollution. A semi-systematic literature review of 1191 data points provides the basis to determine the global ecological, social and economic impacts. An ecosystem impact analysis demonstrates that there is global evidence of impact with medium to high frequency on all subjects, with a medium to high degree of irreversibility. A novel translation of these ecological impacts into ecosystem service impacts provides evidence that all ecosystem services are impacted to some extent by the presence of marine plastic, with a reduction in provision predicted for all except one. This reduction in ecosystem service provision is evidenced to have implications for human health and wellbeing, linked particularly to fisheries, heritage and charismatic species, and recreation.


Asunto(s)
Ecosistema , Explotaciones Pesqueras , Plásticos , Contaminación Química del Agua/economía , Conservación de los Recursos Naturales/economía , Ambiente , Humanos , Contaminantes Químicos del Agua
7.
J Ethnopharmacol ; 221: 86-90, 2018 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-29679724

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Caterpillar mushroom (Ophiocordyceps sinensis) is a unique medicinal fungi which is only found in alpine grasslands in Himalayan mountain regions and the Tibetan Plateau. Known locally as Yartsa Gunbu, it has been widely used in Tibetan and Chinese Medicine for centuries. It is crucial to understand local commercial harvest and trade practices of caterpillar mushroom to support the sustainable management of this valuable resource. However, data derived from empirically grounded research is currently limited, particularly in China. AIM OF THIS STUDY: The research aims to provide the most up-to-date insights into caterpillar mushroom harvest and trade in the main production area of the Tibet Region in Southwest China and to generate policy recommendations for sustainable use. MATERIALS AND METHODS: The research was conducted in 2015-2016 in six Tibetan communities located in two counties in Diqing Tibetan Autonomous Prefecture, Southwest China. Quantitative and qualitative data were collected from in-depth interviews with local households engaged in caterpillar mushroom harvesting (n = 157), local caterpillar mushroom traders (n = 14), and from focus groups discussions (n = 5) with regional caterpillar mushroom industry stakeholders. RESULTS: The research found large regional- and community-level differences in caterpillar mushroom harvest practices. The harvest practices of communities involved in the co-management of a Nature Reserve were more sustainable than those communities not involved in such a scheme, and this was due to the external support and training provided via the co-management scheme. Moreover, a customary tenure system was proving effective for avoiding competition over caterpillar mushroom collection. However, in both counties, narrow marketing channel and non-grading system in trade limits the possibility of improving the local benefits generated from the commercial harvest of caterpillar mushroom. Meanwhile, the local traders play an important bridging role in the value chain and generate greater benefits from product grading. CONCLUSION: To support the sustainable management of the caterpillar mushroom industry in Southwest China, the prefectural governments should invest in training on appropriate harvesting techniques and the dissemination of market information. It is also critical that prefectural governments recognize and support the customary tenure system of mushroom collection to avoid competition between collectors.


Asunto(s)
Agricultura , Conservación de los Recursos Naturales , Hypocreales , Medicina Tradicional China , Adulto , Anciano , Agricultura/economía , Agricultura/métodos , Comercio , Conservación de los Recursos Naturales/economía , Femenino , Grupos Focales , Humanos , Masculino , Medicina Tradicional China/economía , Persona de Mediana Edad , Encuestas y Cuestionarios , Tibet , Adulto Joven
8.
Environ Manage ; 62(1): 29-44, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29313070

RESUMEN

At the end of the 20th century, optimism existed that non-timber forest products (NTFPs) can form an integral part in conservation and development strategies. However, there is limited knowledge on how the different stakeholders could relate to the state or to each other in promoting commercialization of NTFPs. Applying the policy network as an analytical framework, we investigated the structural patterns of actor relations in the governance structure of indigenous natural products (INPs) in Namibia, to understand the implications of such relations on INP policy process. The findings indicate that the INP policy network in Namibia is multi-dimensional, consisting of the Indigenous Plant Task Team (IPTT)-the key governance structure for resource mobilization and information sharing; and functional relations which serve specific roles in the INP value chain. The existing relations have facilitated policy development particularly for heavily regulated species, such as devil's claw; but for other species, only incremental changes are observed in terms of small-scale processing facilities for value addition and exclusive purchase agreements for sustainable sourcing of INPs. Participation of primary producers, private actors and quality standardization bodies is limited in INPs governance structures, which narrow the scope of information sharing. Consequently, despite that the IPTT has fostered publicly funded explorative pilot projects, ranging from production to marketing of INPs, there are no clear guidelines how these projects results can be transferred to private entities for possible commercialization. Further collaboration and information sharing is needed to guide public sector relations with the private entities and cooperatives.


Asunto(s)
Productos Biológicos/economía , Conservación de los Recursos Naturales/métodos , Política Ambiental/tendencias , Bosques , Regulación Gubernamental , Formulación de Políticas , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/legislación & jurisprudencia , Política Ambiental/economía , Política Ambiental/legislación & jurisprudencia , Humanos , Medicina Tradicional , Namibia
9.
Water Sci Technol ; 76(5-6): 1429-1435, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28953469

RESUMEN

Flue gas desulfurization (FGD) wastewater treatment by conventional neutralization, chemical precipitation and coagulation process removes most suspended solids and heavy metals, and provides an effluent rich in calcium, alkalinity and chloride, which obstructs its reclamation and reuse but is in favor of phosphorus (P) precipitation. The goals of this study were to investigate feasibility of reusing FGD effluent as a calcium source for P removal from P-rich wastewater. Results revealed that increasing the volumetric ratio between FGD effluent and P-rich wastewater achieved higher pH value and Ca/P ratio, and thus enhanced P removal efficiency to 94.3% at the ratio of 40%. X-ray diffraction and scanning electron microscope analysis of harvested precipitates showed that increasing pH from 8 to 10 induced the conversion of hydroxyapatite to tri-calcium phosphate, and then to whitlockite. This study demonstrated that for reusing FGD effluent for P removal was highly feasible, both technically and economically. This process not only saves the cost of precipitants for P removal, but also provides an economical alternative for current zero liquid discharge technology for FGD wastewater, which requires high energy consumption and capital costs.


Asunto(s)
Calcio/química , Fósforo/química , Aguas Residuales/química , Purificación del Agua/economía , Precipitación Química , Conservación de los Recursos Naturales/economía , Metales Pesados , Eliminación de Residuos Líquidos/métodos , Purificación del Agua/métodos
10.
Environ Monit Assess ; 189(2): 64, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28105565

RESUMEN

The trade in biodiversity products has gained increasing importance in conservation and livelihood strategies. The aim of this study is to describe and analyze the socioeconomic aspects and dynamics of the production and commercialization of two important products of Brazilian biodiversity from the fruits of Caryocar coriaceum Wittm. and Dimorphandra gardneriana Tul. Interviews were conducted with who were involved in the various stages of value chains. Data were analyzed under an analytical/descriptive approach. It was found that the two value chains under study, although they share the same production environment and workforce, are different models of the commercial appropriation of the forest environment: one is related to local traditions, whereas the other seeks to meet an industry-related demand originating from a multinational pharmaceutical company. Harvesters become highly dependent on the trends imposed by these markets. Thus, it is clear that promoting these products as a conservation strategy requires an understanding of how their value chains arise, are established, and operate.


Asunto(s)
Conservación de los Recursos Naturales/economía , Monitoreo del Ambiente , Ericales , Etnobotánica , Fabaceae , Frutas/economía , Biodiversidad , Brasil , Bosques , Humanos , Modelos Teóricos , Factores Socioeconómicos
11.
Int J Food Sci Nutr ; 68(1): 117-120, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27580817

RESUMEN

The Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico is a five-century institution that, besides the unique clinical role in the center of Milan, may rely on benefactor donations such as fields and farming houses not far from the city, for a total of 8500 ha, all managed by the "Sviluppo Ca' Granda' Foundation". Presently, the main products of these fields are represented by rice and cow's milk. During the latest years, farmers and managers have developed a model of sustainable food production, with great attention to the product quality based on compositional analysis and functional nutritional characteristics. This experience represents a new holistic model of food production and consumption, taking great care of both sustainability and health.


Asunto(s)
Conservación de los Recursos Naturales , Producción de Cultivos/métodos , Industria Lechera/métodos , Calidad de los Alimentos , Estado de Salud , Modelos Biológicos , Animales , Bovinos , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/tendencias , Producción de Cultivos/economía , Producción de Cultivos/educación , Producción de Cultivos/tendencias , Productos Agrícolas/química , Productos Agrícolas/crecimiento & desarrollo , Industria Lechera/economía , Industria Lechera/educación , Industria Lechera/tendencias , Fundaciones , Salud Global , Índice Glucémico , Promoción de la Salud , Humanos , Italia , Leche/química , Estudios de Casos Organizacionales , Oryza/química , Oryza/crecimiento & desarrollo , Evaluación de Programas y Proyectos de Salud , Semillas/química , Semillas/crecimiento & desarrollo
12.
J Sci Food Agric ; 97(3): 733-742, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27558451

RESUMEN

The global expansion in aquaculture production implies an emerging need of suitable and sustainable protein sources. Currently, the fish feed industry is dependent on high-quality protein sources of marine and plant origin. Yeast derived from processing of low-value and non-food lignocellulosic biomass is a potential sustainable source of protein in fish diets. Following enzymatic hydrolysis, the hexose and pentose sugars of lignocellulosic substrates and supplementary nutrients can be converted into protein-rich yeast biomass by fermentation. Studies have shown that yeasts such as Saccharomyces cerevisiae, Candida utilis and Kluyveromyces marxianus have favourable amino acid composition and excellent properties as protein sources in diets for fish, including carnivorous species such as Atlantic salmon and rainbow trout. Suitable downstream processing of the biomass to disrupt cell walls is required to secure high nutrient digestibility. A number of studies have shown various immunological and health benefits from feeding fish low levels of yeast and yeast-derived cell wall fractions. This review summarises current literature on the potential of yeast from lignocellulosic biomass as an alternative protein source for the aquaculture industry. It is concluded that further research and development within yeast production can be important to secure the future sustainability and economic viability of intensive aquaculture. © 2016 Society of Chemical Industry.


Asunto(s)
Alimentación Animal/análisis , Acuicultura , Peces/crecimiento & desarrollo , Abastecimiento de Alimentos , Proteínas Fúngicas/administración & dosificación , Salud Global , Levaduras/aislamiento & purificación , Aminoácidos/análisis , Alimentación Animal/economía , Animales , Acuicultura/economía , Acuicultura/tendencias , Biomasa , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/tendencias , Producción de Cultivos/economía , Digestión , Fermentación , Peces/metabolismo , Abastecimiento de Alimentos/economía , Agricultura Forestal/economía , Proteínas Fúngicas/biosíntesis , Proteínas Fúngicas/química , Proteínas Fúngicas/economía , Humanos , Residuos Industriales/análisis , Residuos Industriales/economía , Lignina/química , Lignina/aislamiento & purificación , Lignina/metabolismo , Desnutrición/economía , Desnutrición/prevención & control , Ciclo del Nitrógeno , Levaduras/química , Levaduras/crecimiento & desarrollo , Levaduras/metabolismo
13.
PLoS One ; 11(12): e0168867, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-28036357

RESUMEN

BACKGROUND: The recently adopted Sustainable Development Goals call for the end of poverty and the equitable provision of healthcare. These goals are often at odds, however: health seeking can lead to catastrophic spending, an outcome for which cancer patients and the poor in resource-limited settings are at particularly high risk. How various health policies affect the additional aims of financial wellbeing and equity is poorly understood. This paper evaluates the health, financial, and equity impacts of governmental and charitable policies for surgical oncology in a resource-limited setting. METHODS: Three charitable platforms for surgical oncology delivery in Uganda were compared to six governmental policies aimed at improving healthcare access. An extended cost-effectiveness analysis using an agent-based simulation model examined the numbers of lives saved, catastrophic expenditure averted, impoverishment averted, costs, and the distribution of benefits across the wealth spectrum. FINDINGS: Of the nine policies and platforms evaluated, two were able to provide simultaneous health and financial benefits efficiently and equitably: mobile surgical units and governmental policies that simultaneously address surgical scaleup, the cost of surgery, and the cost of transportation. Policies that only remove user fees are dominated, as is the commonly employed short-term "surgical mission trip". These results are robust to scenario and sensitivity analyses. INTERPRETATION: The most common platforms for increasing access to surgical care appear unable to provide health and financial risk protection equitably. On the other hand, mobile surgical units, to date an underutilized delivery platform, are able to deliver surgical oncology in a manner that meets sustainable development goals by improving health, financial solvency, and equity. These platforms compare favorably with policies that holistically address surgical delivery and should be considered as countries strengthen health systems.


Asunto(s)
Conservación de los Recursos Naturales/economía , Cirugía General/economía , Accesibilidad a los Servicios de Salud/economía , Pobreza/economía , Análisis Costo-Beneficio/economía , Honorarios y Precios , Gastos en Salud , Humanos , Uganda
14.
Int J Med Mushrooms ; 18(4): 337-46, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27481300

RESUMEN

Ophiocordyceps sinensis has a long history of use in Tibetan traditional medicine and traditional Chinese medicine as a powerful tonic and aphrodisiac. The species is inextricably linked to the trade of medicinal and aromatic plants in East Asia. Its demand has increased substantially in the international market, and its collection and trade have significantly improved the socioeconomic status of the people in some regions. Nonetheless, in Sikkim this resource is still untapped formally, but it is traded illegally. Formal legalization and the community's involvement will ensure the conservation and sustainability of the species, as well as proper management of harvesting areas and monitoring of pressure on Yartsa Gunbu to exploit it.


Asunto(s)
Conservación de los Recursos Naturales , Hypocreales/crecimiento & desarrollo , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/legislación & jurisprudencia , Geografía , Hypocreales/aislamiento & purificación , Medicina Tradicional China , Medicina Tradicional Tibetana , Sikkim
15.
Artículo en Inglés | MEDLINE | ID: mdl-27502380

RESUMEN

African woodlands form a major part of the tropical grassy biome and support the livelihoods of millions of rural and urban people. Charcoal production in particular is a major economic activity, but its impact on other ecosystem services is little studied. To address this, our study collected biophysical and social datasets, which were combined in ecological production functions, to assess ecosystem service provision and its change under different charcoal production scenarios in Gaza Province, southern Mozambique. We found that villages with longer histories of charcoal production had experienced declines in wood suitable for charcoal, firewood and construction, and tended to have lower perceived availabilities of these services. Scenarios of future charcoal impacts indicated that firewood and woody construction services were likely to trade-off with charcoal production. However, even under the most extreme charcoal scenario, these services were not completely lost. Other provisioning services, such as wild food, medicinal plants and grass, were largely unaffected by charcoal production. To reduce the future impacts of charcoal production, producers must avoid increased intensification of charcoal extraction by avoiding the expansion of species and sizes of trees used for charcoal production. This is a major challenge to land managers and policymakers in the area.This article is part of the themed issue 'Tropical grassy biomes: linking ecology, human use and conservation'.


Asunto(s)
Carbón Orgánico/análisis , Conservación de los Recursos Naturales/economía , Pradera , Madera/análisis , Carbón Orgánico/economía , Mozambique
16.
J Ethnopharmacol ; 178: 323-33, 2016 Feb 03.
Artículo en Inglés | MEDLINE | ID: mdl-26631758

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: After almost 50 years of international trade in wild harvested medicinal bark from Africa and Madagascar, the example of Prunus africana holds several lessons for both policy and practice in the fields of forestry, conservation and rural development. Due to recent CITES restrictions on P. africana exports from Burundi, Kenya and Madagascar, coupled with the lifting of the 2007 European Union (EU) ban in 2011, Cameroon's share of the global P. africana bark trade has risen from an average of 38% between 1995 and 2004, to 72.6% (658.6 metric tons) in 2012. Cameroon is therefore at the center of this international policy arena. METHODS AND MATERIALS: This paper draws upon several approaches, combining knowledge in working with P. africana over a 30-year period with a thorough literature review and updated trade data with "ground-truthing" in the field in 2013 and 2014. This enabled the construction of a good perspective on trade volumes (1991-2012), bark prices (and value-chain data) and the gaps between research reports and practice. Two approaches provided excellent lenses for a deeper understanding of policy failure and the "knowing-doing gap" in the P. africana case. A similar approach to Médard's (1992) analyses of power, politics and African development was taken and secondly, studies of commodity chains that assess the power relations that coalesce around different commodities (Ribot, 1998; Ribot and Peluso, 2003). RESULTS: Despite the need to conserve genetically and chemically diverse P. africana, wild populations are vulnerable, even in several "protected areas" in Burundi, Cameroon, the Democratic Republic of Congo and in the forest reserves of Madagascar. Secondly, hopes of decentralized governance of this forest product are misplaced due to elite capture, market monopolies and subsidized management regimes. At the current European price, for P. africana bark (US$6 per kg) for example, the 2012 bark quota (658.675t) from Cameroon alone was worth over US$3.9 million, with the majority of this accruing to a single company. In contrast to lucrative bark exports, the livelihood benefits and financial returns to local harvesters from wild harvest are extremely low. For example, in 2012, the 48 active harvesters working within Mount Cameroon National Park (MCNP) received less than 1US$ per day from bark harvests, due to a net bark price of 0.33 US$ per kg (or 43% of the farm gate price for wild harvested bark). In addition, the costs of inventory, monitoring and managing sustainable wild harvests are far greater than the benefits to harvesters. CONCLUSION: Without the current substantial international donor subsidies, sustainable harvest cannot be sustained. What is required to supply the current and future market is to develop separate, traceable P. africana bark supply chains based on cultivated stocks. On-farm production would benefit thousands of small-scale farmers cultivating P. africana, including local women, for whom wild harvesting is too onerous. This change requires CITES and EU support and would catalyze P. africana cultivation in across several montane African countries and Madagascar, increasing farm-gate prices to harvesters compared to economic returns from wild harvest.


Asunto(s)
Comercio/economía , Comercio/legislación & jurisprudencia , Corteza de la Planta/crecimiento & desarrollo , Extractos Vegetales/economía , Plantas Medicinales/crecimiento & desarrollo , Prunus africana/crecimiento & desarrollo , África , Camerún , Conservación de los Recursos Naturales/economía , Humanos , Madagascar , Extractos Vegetales/uso terapéutico
18.
Philos Trans R Soc Lond B Biol Sci ; 370(1681)2015 Nov 05.
Artículo en Inglés | MEDLINE | ID: mdl-26460137

RESUMEN

Measures of socio-economic impacts of conservation interventions have largely been restricted to externally defined indicators focused on income, which do not reflect people's priorities. Using a holistic, locally grounded conceptualization of human well-being instead provides a way to understand the multi-faceted impacts of conservation on aspects of people's lives that they value. Conservationists are engaging with well-being for both pragmatic and ethical reasons, yet current guidance on how to operationalize the concept is limited. We present nine guiding principles based around a well-being framework incorporating material, relational and subjective components, and focused on gaining knowledge needed for decision-making. The principles relate to four key components of an impact evaluation: (i) defining well-being indicators, giving primacy to the perceptions of those most impacted by interventions through qualitative research, and considering subjective well-being, which can affect engagement with conservation; (ii) attributing impacts to interventions through quasi-experimental designs, or alternative methods such as theory-based, case study and participatory approaches, depending on the setting and evidence required; (iii) understanding the processes of change including evidence of causal linkages, and consideration of trajectories of change and institutional processes; and (iv) data collection with methods selected and applied with sensitivity to research context, consideration of heterogeneity of impacts along relevant societal divisions, and conducted by evaluators with local expertise and independence from the intervention.


Asunto(s)
Conservación de los Recursos Naturales/métodos , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/estadística & datos numéricos , Ecosistema , Humanos , Cambio Social , Factores Socioeconómicos
19.
J Environ Manage ; 162: 158-70, 2015 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-26241931

RESUMEN

As suggested by UNEP, the key to sustainable development is to create a "green economy" which should encapsulate all three sectors: the industry, the people, and the government. Therefore, there is an urgent need to develop and implement the green technologies into the existing facilities, especially in the developing countries. In this study, the role of green supply chains in eco-industrial parks (EIPs) towards a green economy was investigated. The strategies and effective evaluation procedures of the green economy were proposed by assessing the barriers from the perspective of institution, regulation, technology, and finance. In addition, three case studies from iron and steel-making, paper mill and pulping, and petrochemical industries were presented and illustrated for building the green supply chains. For example, in the case of Lin-Hai Industrial Park, a total of 15 efficient green supply chains using waste-to-resources technologies were established by 2012, resulting in an economic benefit of USD 100 million per year. It suggests that the green supply chains should be established to achieve both economic growth and environmental protection. With these successful experiences, building a green supply chain within industrial park should be extensively promoted to make traditional industries around the world being environmentally bearable, economic viable, and social equitable.


Asunto(s)
Conservación de los Recursos Naturales , Industrias/métodos , Industria Química , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/métodos , Industrias/economía , Petróleo , Acero , Taiwán
20.
Environ Manage ; 56(6): 1538-48, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26178534

RESUMEN

Drylands occupy more than 80% of Kenya's total land mass and contribute immensely to the national economy and society through agriculture, livestock production, tourism, and wild product harvesting. Dryland ecosystems are areas of high climate variability making them vulnerable to the threats of land degradation. Consequently, agropastoralists inhabiting these ecosystems develop mechanisms and technologies to cope with the impacts of climate variability. This study is aimed to; (1) determine what agropastoralists inhabiting a semi-arid ecosystem in Kenya attribute to be the causes and indicators of land degradation, (2) document sustainable land management (SLM) technologies being undertaken to combat land degradation, and (3) identify the factors that influence the choice of these SLM technologies. Vegetation change from preferred indigenous forage grass species to woody vegetation was cited as the main indicator of land degradation. Land degradation was attributed to recurrent droughts and low amounts of rainfall, overgrazing, and unsustainable harvesting of trees for fuelwood production. However, despite the challenges posed by climate variability and recurrent droughts, the local community is engaging in simple SLM technologies including grass reseeding, rainwater harvesting and soil conservation, and dryland agroforestry as a holistic approach combating land degradation and improving their rural livelihoods. The choice of these SLM technologies was mainly driven by their additional benefits to combating land degradation. In conclusion, promoting such simple SLM technologies can help reverse the land degradation trend, improve agricultural production, food security including access to food, and subsequently improve livelihoods of communities inhabiting dryland ecosystems.


Asunto(s)
Agricultura/métodos , Conservación de los Recursos Naturales/métodos , Población Rural , Agricultura/economía , Animales , Conservación de los Recursos Naturales/economía , Clima Desértico , Sequías , Ecosistema , Humanos , Kenia , Ganado
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